Publications (6)
Challenges in continuum modeling of intergranular fracture
Valerie R. Coffman, James P. Sethna, Gerd Heber +4
Intergranular fracture in polycrystals is often simulated by finite elements coupled to a cohesive-zone model for the interfaces, requiring cohesive laws for grain boundaries as a…
A comparison of finite element and atomistic modelling of fracture
Valerie R Coffman, James P. Sethna, Gerd Heber +4
Are the cohesive laws of interfaces sufficient for modelling fracture in polycrystals using the cohesive zone model? We examine this question by comparing a fully atomistic simulat…
There Goes the Neighborhood: Relational Algebra for Spatial Data Search
Jim Gray, Alexander S. Szalay, Aniruddha R. Thakar +5
We explored ways of doing spatial search within a relational database: (1) hierarchical triangular mesh (a tessellation of the sphere), (2) a zoned bucketing system, and (3) repres…
Supporting Finite Element Analysis with a Relational Database Backend, Part I: There is Life beyond Files
Gerd Heber, Jim Gray
In this paper, we show how to use a Relational Database Management System in support of Finite Element Analysis. We believe it is a new way of thinking about data management in wel…
Scientific Data Management in the Coming Decade
Jim Gray, David T. Liu, Maria Nieto-Santisteban +3
This is a thought piece on data-intensive science requirements for databases and science centers. It argues that peta-scale datasets will be housed by science centers that provide…
Supporting Finite Element Analysis with a Relational Database Backend, Part II: Database Design and Access
Gerd Heber, Jim Gray
This is Part II of a three article series on using databases for Finite Element Analysis (FEA). It discusses (1) db design, (2) data loading, (3) typical use cases during grid buil…